Cardinal Insulation serves every zip code in Boca Raton for blown-in attic insulation. Whether you're in a 1960s ranch home in 33486 or a newer community in 33498, we provide free in-home assessments and same-day installation for most homes.

Here's a breakdown of what we see in each Boca Raton zip code — and what homeowners there typically need.

33428 — West Boca Raton (Boca Del Mar, Loggers' Run, Sandalfoot Cove)

West Boca's 33428 zip code covers some of the city's most established family communities. Homes here were largely built in the 1970s through 1990s, and many have never had an insulation upgrade.

What we typically find: Original fiberglass batts compressed to R-8 to R-14. Air sealing opportunities around recessed lights and plumbing penetrations are common.

Recommended upgrade: R-49 blown-in fiberglass over existing batts (if in acceptable condition) or full replacement to R-49 or R-60.

Common communities served: Boca Del Mar, Loggers' Run, Sandalfoot Cove, Boca Winds, Palmetto Pines.

33431 — East Boca Raton (Boca Raton Resort Area, Camino Gardens, Boca Villas)

The 33431 zip code covers east Boca Raton, including some of the city's oldest neighborhoods and the area around the Boca Raton Resort. Homes here range from 1950s CBS construction to 1980s townhomes.

What we typically find: Older homes often have minimal insulation — sometimes R-7 or less. Coastal humidity has degraded whatever insulation exists. Many homes have had partial upgrades that left gaps.

Recommended upgrade: Full assessment to determine current condition; typically R-49 or R-60 blown-in replacement.

Common communities served: Camino Gardens, Boca Villas, Boca Harbour, Boca Inlet, Royal Palm Yacht & Country Club area.

33433 — Central Boca Raton (Boca Pointe, Boca Lago, Boca Grove)

The 33433 zip code is one of Boca Raton's most active for insulation upgrades. Homes here were largely built in the 1980s and 1990s — old enough to have significantly degraded insulation, but well-built enough to be worth upgrading.

What we typically find: 1980s–1990s homes with compressed fiberglass batts at R-11 to R-19. Many homes in this zip code have had partial upgrades that didn't reach R-38.

Recommended upgrade: Top-off to R-49 or R-60 in most cases; full replacement if existing insulation is damaged or contaminated.

Common communities served: Boca Pointe, Boca Lago, Boca Grove, Boca Winds, Boca Chase.

33434 — West Boca Raton (Boca West, Broken Sound, Woodfield)

The 33434 zip code covers some of Boca Raton's most prestigious communities, including Boca West Country Club and Broken Sound. Homes here are larger, with bigger attic footprints — and bigger potential savings from a proper insulation upgrade.

What we typically find: Large attics with 1980s–1990s builder-grade insulation. Many homes in this zip code have R-19 to R-30 — better than average, but still well below the R-49 to R-60 recommended for Boca Raton's climate.

Recommended upgrade: Top-off to R-49 or R-60. Larger attics mean more material and slightly higher cost, but also larger energy savings.

Common communities served: Boca West Country Club, Broken Sound, Woodfield Country Club, Boca Pointe, Boca Chase.

33486 — Central Boca Raton (Downtown, Mizner Park Area, Old Floresta)

The 33486 zip code covers central Boca Raton including the downtown area, Mizner Park, and some of the city's oldest residential neighborhoods. Homes here range from 1940s–1950s historic properties to 1970s–1980s single-family homes.

What we typically find: Older homes with minimal or degraded insulation. Historic properties often have non-standard attic configurations that require experienced crews. Many homes have R-7 or less.

Recommended upgrade: Full assessment required; typically R-49 or R-60 blown-in replacement. Historic homes may require special access techniques.

Common communities served: Old Floresta, Boca Raton Heights, Boca Raton Riviera, downtown Boca Raton residential.

33487 — North Boca Raton (Boca Teeca, Boca Bath & Tennis, Arvida Parkway)

The 33487 zip code covers north Boca Raton, including communities along the Intracoastal and the Arvida Parkway corridor. Homes here range from 1960s–1970s waterfront properties to 1990s–2000s planned communities.

What we typically find: Coastal humidity has accelerated insulation degradation in waterfront and near-waterfront homes. Moisture-resistant fiberglass blown-in is especially important in this zip code.

Recommended upgrade: R-49 or R-60 fiberglass blown-in; moisture assessment included in free inspection.

Common communities served: Boca Teeca, Boca Bath & Tennis Club, Arvida Parkway communities, Boca Harbour.

33496 — West Boca Raton (Boca Isles, Boca Falls, Saturnia)

The 33496 zip code covers newer communities in west Boca Raton, largely built in the 1990s through 2000s. While newer than much of Boca Raton, these homes still have builder-grade insulation that has settled significantly.

What we typically find: Builder-grade insulation at R-19 to R-30. Many homeowners in this zip code are surprised to learn their "newer" home is significantly under-insulated by current standards.

Recommended upgrade: Top-off to R-49 or R-60 in most cases. Straightforward jobs with good attic access.

Common communities served: Boca Isles, Boca Falls, Saturnia, Boca Winds, Boca Lago.

33498 — West Boca Raton (Boca Raton Polo Club, Boca Greens, Boca Dunes)

The 33498 zip code covers the westernmost communities in Boca Raton, including some of the city's newer planned communities. Homes here were largely built in the 1990s through 2010s.

What we typically find: Builder-grade insulation at R-19 to R-30. Newer construction but still well below the R-49 to R-60 recommended for Boca Raton's climate.

Recommended upgrade: Top-off to R-49 or R-60. Good attic access in most homes; straightforward installations.

Common communities served: Boca Raton Polo Club, Boca Greens, Boca Dunes, Boca Winds, Boca Chase.

Schedule Your Free Assessment in Any Boca Raton Zip Code

Cardinal Insulation serves all nine Boca Raton zip codes with free in-home assessments and same-day installation for most homes. Our office is located in Boca Raton, which means fast scheduling and local expertise.

Call (561) 654-7698 or contact us online to schedule your free blown-in insulation assessment. Most appointments are available within 1–2 business days.